PART III: MAINTENANCE MANUAL
29
WIRING DIAGRAMS
Complete key
C1
Operation time counter first stage
C2
Operation time counter second stage
CO
Operation time counter
ER
Flame detection electrode
EV1
Gas network side solenoid valve (or valves group)
EV2
Burner side solenoid valve (or valves group)
F
Fuse
FR
Photoresistor
FU2-FU3
Line fuse
IG
Main switch
IL
Line switch
L
Phase
LANDIS LOA24/44 - LMO24/44Landis flame controller
LAF-LAF1
Burner in high flame operation light
LB
Flame lockout light
LBF
Burner in low flame operation light
LF
Burner in operation signaling light
LGB.. / LMG..
LANDIS flame control device
LTA
Ignition transformer operation light
MA
Burner supply terminal board
MV
Fan motor
N
Neutral
PA
Air pressure switch
PG
Minimum gas pressure switch
PS
Reset pushbutton for flame control device
SATRONIC DK0976-DKW976Flame controller
SATRONIC DKW972
Flame controller
ST
Group of thermostats or pressure switches
STA4.5B0.37/63N21L
BERGER servocontrol for air damper
SW1
Second stage pushbutton
TA
Ignition transformer
TAB
High-low flame thermostat (if fitted remove the bridge between terminals 6 and 7 on terminal board MA)
TS
Safety thermostat or pressure switch on boiler
VPS
Dungs valves leakage control (optional)
Note: connect the bridge between terminals 7 and 9, only if LGB21.33 is used
SERVOCONTROL CAMS
WARNING:
1 - Power supply 230V 50/60Hz 2N a.c.
2 - Don’t reverse phase with neutral
3 - Be sure the burner is properly hearted
LANDIS
SQN30.151
BERGER
STA6BB3.41
LANDIS
SQN70.224A20
BERGER
STA4.5B0.37
STA13B0.36
I
ST2
RED
I high
flame
II
ST0
BLUE
II
stand by
III
ST1
ORANGE
IV
low flame
V
MV
BLACK
III
Not used
Содержание Enterprise LG 120
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Страница 31: ...PART III MAINTENANCE MANUAL 31 Wiring diagram 18 069 Rev 1 High Low flame burners ...
Страница 32: ...PART III MAINTENANCE MANUAL 32 Wiring diagram 18 069 Connectors layout on printed circuit ...
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